bug#37496: 27.0.50; C-s failing to search

[Eli Zaretskii]

> Date: Sat, 28 Sep 2019 13:06:44 +0200
> From: Jean Louis <bugs@gnu.support>
> Cc: 37496@debbugs.gnu.org
> 
> I have tried this but I did not see nothing happening, no debug,
> something wrong on my side. I am waiting for that to happen again so
> that I try this again.

If Edebug doesn't kick in, it might mean the
wdired-isearch-filter-read-only function is not invoked in this
scenario, i.e. my theory is incorrect, and some other factor is at
work here.